We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Initiation of deep convection through deepening of a well‐mixed boundary layer.
- Abstract
The present study examines mechanisms by which deep moist convection may be initiated through deepening of a well‐mixed convective boundary layer under large‐scale low‐level convergence. The process is examined using a standard formulation for the well‐mixed boundary layer, in which the depth increases exponentially with time under a constant convergence with height. Consideration is also given to a case with a more realistic mean vertical velocity profile which has a maximum in the middle troposphere and attenuates to zero at the tropopause. In the latter case, the unstable well‐mixed layer under convergence grows to a troposphere‐deep mixed layer. Importantly, under these scenarios, the so‐called convective inhibition (CIN) does not inhibit deepening of a well‐mixed convective boundary layer, nor does deep moist convection need to overcome CIN to initiate.
- Subjects
BOUNDARY layer (Aerodynamics); MIXING height (Atmospheric chemistry); TROPOPAUSE; CONVECTIVE boundary layer (Meteorology); TROPOSPHERE
- Publication
Quarterly Journal of the Royal Meteorological Society, 2021, Vol 147, Issue 739, p3085
- ISSN
0035-9009
- Publication type
Article
- DOI
10.1002/qj.4117